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(No Model.) 4

G. L. KITSON.

OUPLING FOR ELECTRIC WIRES.V f No. 295,559. K Patend Mar. 25, 1884-.

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. www@ FZ?? y TIGR/'wary' H'UNTTED STATES aTEaT Yrtree.

GEORGE L. KITSON, OE PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TOY VILLIAM J. PHILIPS, OE SAME PLACE.

CoUPLlNe FoR ELECTRIC WIRES.

SPECIFICATION forming part of Letters Patent No. 295,559, dated March 25, 1884.

Application filed August 15, 1883. (No model.) i

'o @H wwm it 11m/,2] concern:

Beit known that I, GEORGE L. KrTsoN, a

` citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Couplings for Electric Vires, of which the following is a specification, reference being had therein to the accompanying drawings, whereinw Figure l is a sectional plan of my improved coupling; Fig. 2, a sectional elevation; Fig. 3, asimilar view. Fig. .tis an elevation. Fig. 5 is a sectional plan, showing the contacting surfaces of the conductors and coupling-sleeves tinned or covered with solder. Fig. Gis alongitudinal section of such sleeve. Figs. 7 and S are broken end elevations of said conductors. Fig. 9 is a perspective of the couplingkey with tinned surfaces or sides, and Fig. 10, is a plan of a modification.

My invention has relation to couplings or `joints for electric wires or conductors, and has afor its object to provide an inexpensive, easily-constructed, and durable coupling, which will insure perfect electrical contact between the ends of the joined wires, and which cannot be broken by axial or longitudinal strain or pressure falling upon or applied to said wires. My invention accordingly consists of the novel combination, construction, and arrangement of parts comprising a coupling or joint for electric wires, as hereinafter described and claimed, having reference particularly, first,

' to the provision of double inclines with intervening shoulders formed on the ends of the wires designed to be joined together, a coupling-sleeve with a keyway, and a key which passes through said sleeve and between said shoulders, whereby the engagement of the key with the shoulders on the ends of thcwires causes their double inclines to contact with one another and couple said parts together; and, second, to the provision of double-inclined-ended wires having shoulders between the inclines, a coupling-sleeve with transverse keyway, and a key therefor, the contacting surfaces of said parts being coated with a iilmV of solder, or are tinned before being put together, so that when they are coupled and heat has been applied thereto they are all soldered to each other at'one operation. y

In the drawings, A A represent two electrical wires designed to be joined or coupled .together.4 Their ends are formed with a double bevel or two inclines, a a, with intervening shoulder, a, so that when joined together the inclines will overlap or contact with each other and provide an opening or way, b, between the shoulders a a', for the passage of a key, B, as plainly shown in.Fig.'l.

C represents a sleeve, which surrounds the ends of `wires A A at their junction, and is provided with a transverse opening, c..

The operation of coupling is obvious. The sleeve C is rst passed over the end of one of `the wires A, and the end of the remaining wire` is slipped into the sleeve until the double inclines of the wires impinge and the opening b is formed. The sleeve -G is then adjusted or rotated until its opening c registers with opening b to form a way or seat through the coupling for the key B, which is then inserted and driven into said way, and holds or locks said parts in their coupled position. The keyB is maintained in its seat or way by friction, and the tighter it is driven thereinto the closer will be the impingement of the double-inclined ends au of the wires A A against each other to provide perfect electrical contact for such surfaces. To uncouple the wires A A, the key B is knocked out of the sleeve C, whereupon the latter and the wires fall apart from each other.

If desired, the bore of the sleeve C, the faces of the double inclines or the ends of the wires A,and the key B may be coated with a iilm of solder, or tinned, as indicated at x,`Figs. 5 to 9, inclusive, so that when said parts have been coupled together and heat then applied thereto they will all be soldered together at one operation t0 `form a permanent coupling, which can only be disconnected by the application of heat.

For ordinary purposes the `parts composing the coupling need not be covered with the solder; but where it is desirable tohave a coupling with water or moisture proof joints,then such solder or tinning is `preferably applied, as above set forth.

. I have described the ends of the wiresA A provided with double bevels or inclines; but, if desired, a single incline only need be formed IOO thereon, in which is a recess, d, so that when two such ends are united, as shown in Fig. 10, the opening b is formed by said recesses for the passage of key B. I therefore do not limit my invention to the use of the double-inclined ends for the Wires A A, although I deem such construction to be the most preferab e one.

Vhat I claim is- 1L A coupling for electric wires,comprising overlapping Wire ends with transverse opening or seat in the line of their junction, a sleeve with transverse opening, and a key passing through the latter and said junction-opening, substantially as shown and described.

2. A coupling for electric Wires, comprising overlapping Wire or conductor ends and a surrounding sleeve having a transverse opening or way for a key, which locks said parts together, substantially as shown and described.

3. In a coupling for elec-tric Wires, the combination of beveled or overlapping ends of wires A A, having transverse opening b, the sleeve C, with registering opening c, and a key, B, substantially as shown and described.

4. The combination of wires A A, having double-inclined ends a a, with intervening shulders, a a', and opening b, the sleeve C, with registering opening c, and key Bfsubstantially as shown and described.

5. The combination of wires A A, having beveled ends, with opening b, sleeve C, with opening c, and key B, said parts being surface-soldered before coupled together, substantially as shown and described.

6. In a coupling for electric wires, the cornbination of two uniting-wires having an opening in the line of their junction, a surrounding sleeve with registering opening, and a key for locking said parts together, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE' L. Kr'rsoN.

Witnesses:

JOHN RoDGERs, S. J. VAN SrAvoREN. 

